Astronomik CLS Light Pollution Filter 2" (Pre-owned) M54 Camera Adapters 4 mm (11 in) Focal

4 mm (11 in) Focal Length 2800 mm (110 in) Focal Ratio 10 Focal Length of Eyepiece 1 (mm) 40 mm (1

Length & Diameter: 137mm x 61 mm

For experienced imagers

Stainless Steel (1

Focal Length: 28mm

Astronomik CLS Light Pollution Filter 2" (Pre-owned) M54 Camera Adapters 4 mm (11 in) FocalDescription Astronomik CLS filters are suitable under light polluted skies for DSLR Cameras which have not been modified for astronomical use. The Astronomik CLS is a budget filter for visual observation, black & white photography and CCD photographs of nebulae, galaxies and star clusters with astronomical instruments of any size. The Astronomik CLS blocks the light of the spectral lines of mercury and sodium vapor lamps and lets the largest part of